Evidence map›Paper›PMID 22588483›Full record

ArticleEuropean biophysics journal : EBJ2013

Structure-based statistical analysis of transmembrane helices.

Carlos Baeza-Delgado, Marc A Marti-Renom, Ismael Mingarro

Open access · greenAbstract read
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In one paragraph

Article in European biophysics journal : EBJ, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed
2.1field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

47 citing papers in PubMed, 90 citations in OpenAlex.

  1. Article
  2. Structural Features of a Tiny Viral Protein, ORF7b of SARS-CoV-2.International journal of molecular sciences · 2026
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  8. The oncogene SLC35F2 is a high-specificity transporter for the micronutrients queuine and queuosine.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  14. Review
  15. Article
  16. Review
  17. Article
  18. Contiguously hydrophobic sequences are functionally significant throughout the human exome.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  19. Folding and Insertion of Transmembrane Helices at the ER.International journal of molecular sciences · 2021
    Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Carlos Baeza-DelgadoDepartament de Bioquímica i Biologia Molecular, Universitat de València, Burjassot, Spain.
Marc A Marti-Renom
Ismael Mingarro
Universitat de València · ESCentro Nacional de Análisis Genómico · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recent advances in determination of the high-resolution structure of membrane proteins now enable analysis of the main features of amino acids in transmembrane (TM) segments in comparison with amino acids in water-soluble helices. In this work, we conducted a large-scale analysis of the prevalent locations of amino acids by using a data set of 170 structures of integral membrane proteins obtained from the MPtopo database and 930 structures of water-soluble helical proteins obtained from the protein data bank. Large hydrophobic amino acids (Leu, Val, Ile, and Phe) plus Gly were clearly prevalent in TM helices whereas polar amino acids (Glu, Lys, Asp, Arg, and Gln) were less frequent in this type of helix. The distribution of amino acids along TM helices was also examined. As expected, hydrophobic and slightly polar amino acids are commonly found in the hydrophobic core of the membrane whereas aromatic (Trp and Tyr), Pro, and the hydrophilic amino acids (Asn, His, and Gln) occur more frequently in the interface regions. Charged amino acids are also statistically prevalent outside the hydrophobic core of the membrane, and whereas acidic amino acids are frequently found at both cytoplasmic and extra-cytoplasmic interfaces, basic amino acids cluster at the cytoplasmic interface. These results strongly support the experimentally demonstrated biased distribution of positively charged amino acids (that is, the so-called the positive-inside rule) with structural data.

Indexed as

Computational BiologyCell MembraneDatabases, ProteinMembrane ProteinsModels, MolecularProtein Structure, SecondarySolubilityThermodynamicsWaterMembrane ProteinsWater

Identifiers

PMID22588483
OpenAlexW2024313472

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.